Grain-separator



(No Model.)

I 2 Sheets-Sheet 1. G. BROOKS & s. B. PIKE.

GRAIN SEPARATOR. No. 324,454 Patented Aug. 1 8, 1885.

I" I 51/ zyHZ A WITNESSES n. PETERS. Pmwmm n hu. Wahingmn. n. C.

(No Model.) 2 Sheets-Sheet 2;

G. BROOKS & S. B. PIKE.

GRAIN SEPARATOR.

No. 324,454. Patented Aug. 18, 1885.

Fig.3. at 1 WITNESSES W ATTO mm M. PETERS. PMlzrLilhngnphcr, Washington.ac,

UNITED STATES PATENT OFFICE.

GEORGE BROOKS AND SOLOMON B. PIKE, OF DETROIT, MICHIGAN.

GRAlN-SEPARATOR.

$PECIFICA'I'ION forming part of Letters Patent No. 324,454, dated.August 18, 1885.

Application filed June 12, 1884.

(No model.)

Separators; and we dodeclare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make .and use the same, referencebeing had .to the accompanying drawings, and to letters or figures ofreference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a side view of our device. Fig. 2 is a topview. Fig 3 is a vertical sectional view. Fig. 4 is a transversesection; and Figs. 5, 6, and 7 are detail views.

This invention has relation to improvements in grainseparators; and itconsists in the construction and novel arrangement of devices, as willbe hereinafter more fully set forth, and particularly pointed out in theappended claims.

In the accompanying drawings, A represents the frame of the mill, towhich are properly attached the hopper B, the drum 0 for the fan 0, thewind-conveyer D, and the screen frame or shoe H.

a is an inclined plane, of' wood, running backward and upward from thefront of the frame A to a point just below the lower front end of thescreen-frame H. v The rear wall of the hopper Bis a rectangular door,b,'sliding in ways to open and close the vent, the said door havingfixed to its outer surface the rack 1), moving over the pinion b on atransverse rod, Z1 which has bearings in the frame of the machine. Theend of said rod is furnished with a proper head,by which it is turnedand the door moved, the latter being held inany desired position by theratchet-wheel b on the end of the rod outside of theframe, controlled byaproper pawl or detent attached'to the latter. The drum 0 has on its topand bottom inner edges the depending hooks D D, which fit over pins orother proper supports, D" D*, fixed in the frame,and the pins or detents0 c pivoted to the outer surface of the frame above the drum and bearingdown upon its upper surface to hold it in position. The fan-shaft c isdriven in the usual manner by a crankhandle and gearing, or by otherproper means, and is connected with the crank-lever c, which vibratesthe screen-carrier by an eccentric, 0", and connecting-rod, as usual.

D is the wind or blast conveyer, the sides d d of which fit looselyagainst the inner surfaces of the sides of the frame, with their frontedges flush with the front of the same, so that one-half of the fan,when at rest, lies between them. Each side d is pivoted at its upperfront corner at d to the frame A and has,near its lower front corner,the downward inclined slot d through which passes a set screw, whichenters the inner surface of the frame to control the movement of thesaid side (1.

d d represent the top and bottom of the conveyer, respectively, whichconverge from front to rear, and are constructed as follows: The top (2is divided into two partsa front portion, fixed between the upper edgesof the sides cl (1, and a movable rear portion, hinged to the rear edgeof the former, and forming a transverse rectangular flap or door, E,which is held up bya spiral or other proper spring, 0, depending from atransverse rod, e, having bearings in the frame A above the level of thedoor. A finger, e, fixed at right angles to said rod, serves to depressthe door, which may be held in any desired position by a ratchet-wheel,0 on the rod outside the frame controlled .by a pawl fixed to thelatter. The bottom (1" is likewise divided into two part-s afrontportion, fixed between the lower edges of the sides, and a transverserectangular or flat door, 1*, hinged to the rear edge of the same. Thedoor F is supported by the upturned lower front corners of the sides,and is raised by a spring, F, suspended from a rod, Gr, similar tothatabove mentioned.

G is a horizontal lever passing through a slot in one side of the frameA. The slot has the same inclination as the bottom (1, and the inner endof the lever extends under and is fixed to thelatter. By this lever theconveye-r may be turned on the pivots d d to any desired position, andsecured by the set-screws and slots d d in its sides.

H is the screen-frame, composed of the sides hJz, the rectangularinclined piece h between its upper front corners, and the inclined spout71 between its lower front corners. The screenframe is hung within theframe A by the X- shaped leafsprings h 71 having their upper endsattached to the latter and their lower ends to the former, and the frontedges of the sides 71 h are cut away centrally to give room for thedoors E and 1 of the conveyer, which is situated immediately in front ofthe screenframe.

If If are ways made in the inner surfaces of the sides It h for theinsertion of the upper screens, 71 h, inclining slightly downward fromfront to rear.

71 is a picker-bar fixed transversely across the screen-frame in suchmanner that its attached points enter the bend of the hopper.

h is a vertical channel made in one of the sides It of the screen-frame,its lower end, h", opening from the lower edge of said side immediatelyabove the mouth of an outward and downward inclining spout, h", insertedin the side of the frame A. The upper end, h, of the channel [LR openson the inner surface of the side immediately adjacent to one end of theseed-box I. The month of the spout it extends far enough within theframe A to be always under the lower end of the vertical channel h inwhatever part of its vibrations the screen'frame may be. The spouts 71Fand 71" discharge on opposite sides of the machine.

I is the box for grass and other small seed, the top of which is coveredwith a fine screen, the bottom and sides being closed. The bottom hasits inside surface inclined lengthwise, the lowest end of it being flushwith a 10%, 13, through the side of the box. The box 1 his tightlybetween the sides of the screenframe below the pieker'bar, and itsbottom rests upon the inclined piece 71". seedbox is in place, the hole1'. corresponds with the opening It, so that the seed are dischargedthrough the vertical channel h to the spout h. All grain coming from thehopper 1n ust pass over this box, and, as its closed bot tom and sidesprotect its upper surface from the blast from the fan, all seed smallenough will sift into it.

K is a screen inserted between the sides 71 71 of the sereenirame,inclining downward from rear to front and delivering into the spout h.

K is a similar screen, lower than and parallel to the screen K, anddelivering upon the inclined plane a. The screen K is supported at itslower end by the lugs f, extending from the inner surface of the sides hof the screenframc, audits opposite or upper end is supported by the barM, which is journaled at opposite ends in the main frame. The screen Kis supported at its lower end in a similar manner by lngsf", and at itsopposite end by the transverse rod. L.

L is a transverse horizontal rod, with its end passing through thescreen-frame, near the rear end of the same, and having a finger-hold onone or both ends, the said rod being threaded where it passes throughthe sides h h.

\Vhen the Z Z are arms projecting from the rod L, one

from near each end, just within the sides of the its frame, and providedon its central portion with a small roller, 71:, transverse to the bar,and secured to the lower surface thereof in any proper manner.

M is a transverse rod running through the frame A at a proper distancebelow the screen in is the enlarged central portion of the rod M, havingtwo longitudinal flat sides, in m opposite each other and parallel tothe rod,

one being farther from the center than the other. Each of these sidescarries a roller, at, similar to the roller k, which, when the face isturned upright, is immediately above the former. As the screen-framevibrates, the upper roller passes over the lower, thus giving the screenK abouncing motion in addition to its lateral vibration. It will beperceived that by having one of the sides at at a greater distance thanthe other from the center of the bar M the bouncing movement of thescreen K may be varied by simply turning the said bar I in its hearingsto present the rollers m, respectively, to the roller K.

The description of the drum makes the manner of securing it to andreleasing it from the frame A evident, and the description of thegrass-seed box I shows that such seed pass from the box through thechannel It to the spout h to be discharged.

In regard to the conveyer: When it is de sired to direct the blast fromthe fan higher, the conveyer is rotated inward on its pivotpoints cl (1and fixed, where desired, by means of the slots d d and accompanyingset-scrcws. The reverse is done to direct the blast to a lower point.

To lessen the exit for the blast the doors E and F are brought togetherby the described mechanism, and the said doors are separated by the sameto widen said exit. The screen of the grass-seed box is of necessity theone that has the finest meshes, as it has to transmit the finest seed.Below that the screens increase in fineness downward, as usual. Thescreens h" h discharge the coarsest grain by way of the tail of themachine. The screen K discharges a finer grade by the spent it", and thefinest grade is discharged by the screen K upon the inclined plane a atthe front of the mill.

The operation of the rollers 70 and Wand of the rods L to change theelevation of the rear ends of the screens K and K have been, heretoforesuffi cientl y described.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. In a fanning-mill, the combination, with the frame A, of the drum 0,provided with the hooks D D, fitting over the pins D D, fixed to theframe, and the detents c c, pivoted to the front of the said frame abovethe drum and engaging the upper surface of, the said drum, substantiallyas specified.

2. In a grain-separator, the combination, with the frame A, drum 0, fan0, screenframe H, and mechanism for actuating the same, of theblast-conveyer pivoted within the frame, the springs e and F, and thedoors E and F, substantially as specified.

3. In a grain-separator, the combination, with the frame A, drum 0, fan0, screenframe H, and mechanism for actuating the same, of the lever G,the pivoted blast-conveyer D, the set-screw (2 the doors E and F, thesprings e and F, and the rods 6 and G, substantially as specified.

4. In a fanning-mill, the combination, with the screen-frame H, vibratedlaterally, of the screen K, having fixed to its lower surface the bar k,provided with the roller 70, and the rod M. provided with a similarroller or rollers, m substantially as shown and described.

In testimony whereof we affix our signatures 0 in presence of twowitnesses.

GEORGE BROOKS. SOLOMON B. PIKE.

Witnesses:

CLAUDE E. WILSON, Jno. B. OoRLIss.

